1 /* $NetBSD: uri_256.c,v 1.1.1.5 2014/12/10 03:34:42 christos Exp $ */ 2 3 /* 4 * Copyright (C) 2011, 2012, 2014 Internet Systems Consortium, Inc. ("ISC") 5 * 6 * Permission to use, copy, modify, and/or distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 11 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 12 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 13 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 14 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 15 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 16 * PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 /* Id */ 20 21 #ifndef GENERIC_URI_256_C 22 #define GENERIC_URI_256_C 1 23 24 #define RRTYPE_URI_ATTRIBUTES (0) 25 26 static inline isc_result_t 27 fromtext_uri(ARGS_FROMTEXT) { 28 isc_token_t token; 29 30 REQUIRE(type == 256); 31 32 UNUSED(type); 33 UNUSED(rdclass); 34 UNUSED(origin); 35 UNUSED(options); 36 UNUSED(callbacks); 37 38 /* 39 * Priority 40 */ 41 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, 42 ISC_FALSE)); 43 if (token.value.as_ulong > 0xffffU) 44 RETTOK(ISC_R_RANGE); 45 RETERR(uint16_tobuffer(token.value.as_ulong, target)); 46 47 /* 48 * Weight 49 */ 50 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, 51 ISC_FALSE)); 52 if (token.value.as_ulong > 0xffffU) 53 RETTOK(ISC_R_RANGE); 54 RETERR(uint16_tobuffer(token.value.as_ulong, target)); 55 56 /* 57 * Target URI 58 */ 59 RETERR(isc_lex_getmastertoken(lexer, &token, 60 isc_tokentype_qstring, ISC_FALSE)); 61 if (token.type != isc_tokentype_qstring) 62 RETTOK(DNS_R_SYNTAX); 63 RETTOK(multitxt_fromtext(&token.value.as_textregion, target)); 64 return (ISC_R_SUCCESS); 65 } 66 67 static inline isc_result_t 68 totext_uri(ARGS_TOTEXT) { 69 isc_region_t region; 70 unsigned short priority, weight; 71 char buf[sizeof("65000 ")]; 72 73 UNUSED(tctx); 74 75 REQUIRE(rdata->type == 256); 76 REQUIRE(rdata->length != 0); 77 78 dns_rdata_toregion(rdata, ®ion); 79 80 /* 81 * Priority 82 */ 83 priority = uint16_fromregion(®ion); 84 isc_region_consume(®ion, 2); 85 sprintf(buf, "%u ", priority); 86 RETERR(str_totext(buf, target)); 87 88 /* 89 * Weight 90 */ 91 weight = uint16_fromregion(®ion); 92 isc_region_consume(®ion, 2); 93 sprintf(buf, "%u ", weight); 94 RETERR(str_totext(buf, target)); 95 96 /* 97 * Target URI 98 */ 99 RETERR(multitxt_totext(®ion, target)); 100 return (ISC_R_SUCCESS); 101 } 102 103 static inline isc_result_t 104 fromwire_uri(ARGS_FROMWIRE) { 105 isc_region_t region; 106 107 REQUIRE(type == 256); 108 109 UNUSED(type); 110 UNUSED(rdclass); 111 UNUSED(dctx); 112 UNUSED(options); 113 114 /* 115 * Priority, weight 116 */ 117 isc_buffer_activeregion(source, ®ion); 118 if (region.length < 4) 119 return (ISC_R_UNEXPECTEDEND); 120 121 /* 122 * Priority, weight and target URI 123 */ 124 isc_buffer_forward(source, region.length); 125 return (mem_tobuffer(target, region.base, region.length)); 126 } 127 128 static inline isc_result_t 129 towire_uri(ARGS_TOWIRE) { 130 isc_region_t region; 131 132 REQUIRE(rdata->type == 256); 133 REQUIRE(rdata->length != 0); 134 135 UNUSED(cctx); 136 137 dns_rdata_toregion(rdata, ®ion); 138 return (mem_tobuffer(target, region.base, region.length)); 139 } 140 141 static inline int 142 compare_uri(ARGS_COMPARE) { 143 isc_region_t r1; 144 isc_region_t r2; 145 int order; 146 147 REQUIRE(rdata1->type == rdata2->type); 148 REQUIRE(rdata1->rdclass == rdata2->rdclass); 149 REQUIRE(rdata1->type == 256); 150 REQUIRE(rdata1->length != 0); 151 REQUIRE(rdata2->length != 0); 152 153 dns_rdata_toregion(rdata1, &r1); 154 dns_rdata_toregion(rdata2, &r2); 155 156 /* 157 * Priority 158 */ 159 order = memcmp(r1.base, r2.base, 2); 160 if (order != 0) 161 return (order < 0 ? -1 : 1); 162 isc_region_consume(&r1, 2); 163 isc_region_consume(&r2, 2); 164 165 /* 166 * Weight 167 */ 168 order = memcmp(r1.base, r2.base, 2); 169 if (order != 0) 170 return (order < 0 ? -1 : 1); 171 isc_region_consume(&r1, 2); 172 isc_region_consume(&r2, 2); 173 174 return (isc_region_compare(&r1, &r2)); 175 } 176 177 static inline isc_result_t 178 fromstruct_uri(ARGS_FROMSTRUCT) { 179 dns_rdata_uri_t *uri = source; 180 181 REQUIRE(type == 256); 182 REQUIRE(source != NULL); 183 REQUIRE(uri->common.rdtype == type); 184 REQUIRE(uri->common.rdclass == rdclass); 185 REQUIRE(uri->target != NULL && uri->tgt_len != 0); 186 187 UNUSED(type); 188 UNUSED(rdclass); 189 190 /* 191 * Priority 192 */ 193 RETERR(uint16_tobuffer(uri->priority, target)); 194 195 /* 196 * Weight 197 */ 198 RETERR(uint16_tobuffer(uri->weight, target)); 199 200 /* 201 * Target URI 202 */ 203 return (mem_tobuffer(target, uri->target, uri->tgt_len)); 204 } 205 206 static inline isc_result_t 207 tostruct_uri(ARGS_TOSTRUCT) { 208 dns_rdata_uri_t *uri = target; 209 isc_region_t sr; 210 211 REQUIRE(rdata->type == 256); 212 REQUIRE(target != NULL); 213 REQUIRE(rdata->length != 0); 214 215 uri->common.rdclass = rdata->rdclass; 216 uri->common.rdtype = rdata->type; 217 ISC_LINK_INIT(&uri->common, link); 218 219 dns_rdata_toregion(rdata, &sr); 220 221 /* 222 * Priority 223 */ 224 if (sr.length < 2) 225 return (ISC_R_UNEXPECTEDEND); 226 uri->priority = uint16_fromregion(&sr); 227 isc_region_consume(&sr, 2); 228 229 /* 230 * Weight 231 */ 232 if (sr.length < 2) 233 return (ISC_R_UNEXPECTEDEND); 234 uri->weight = uint16_fromregion(&sr); 235 isc_region_consume(&sr, 2); 236 237 /* 238 * Target URI 239 */ 240 uri->tgt_len = sr.length; 241 uri->target = mem_maybedup(mctx, sr.base, sr.length); 242 if (uri->target == NULL) 243 return (ISC_R_NOMEMORY); 244 245 uri->mctx = mctx; 246 return (ISC_R_SUCCESS); 247 } 248 249 static inline void 250 freestruct_uri(ARGS_FREESTRUCT) { 251 dns_rdata_uri_t *uri = (dns_rdata_uri_t *) source; 252 253 REQUIRE(source != NULL); 254 REQUIRE(uri->common.rdtype == 256); 255 256 if (uri->mctx == NULL) 257 return; 258 259 if (uri->target != NULL) 260 isc_mem_free(uri->mctx, uri->target); 261 uri->mctx = NULL; 262 } 263 264 static inline isc_result_t 265 additionaldata_uri(ARGS_ADDLDATA) { 266 REQUIRE(rdata->type == 256); 267 268 UNUSED(rdata); 269 UNUSED(add); 270 UNUSED(arg); 271 272 return (ISC_R_SUCCESS); 273 } 274 275 static inline isc_result_t 276 digest_uri(ARGS_DIGEST) { 277 isc_region_t r; 278 279 REQUIRE(rdata->type == 256); 280 281 dns_rdata_toregion(rdata, &r); 282 283 return ((digest)(arg, &r)); 284 } 285 286 static inline isc_boolean_t 287 checkowner_uri(ARGS_CHECKOWNER) { 288 289 REQUIRE(type == 256); 290 291 UNUSED(name); 292 UNUSED(type); 293 UNUSED(rdclass); 294 UNUSED(wildcard); 295 296 return (ISC_TRUE); 297 } 298 299 static inline isc_boolean_t 300 checknames_uri(ARGS_CHECKNAMES) { 301 302 REQUIRE(rdata->type == 256); 303 304 UNUSED(rdata); 305 UNUSED(owner); 306 UNUSED(bad); 307 308 return (ISC_TRUE); 309 } 310 311 static inline int 312 casecompare_uri(ARGS_COMPARE) { 313 return (compare_uri(rdata1, rdata2)); 314 } 315 316 #endif /* GENERIC_URI_256_C */ 317